A question from Superspace and 1001 lessons

In summary, "A question from Superspace and 1001 lessons" explores the intersection of theoretical physics and practical learning, emphasizing the importance of curiosity and inquiry in understanding complex concepts. The narrative highlights how questions can lead to deeper insights and learning experiences, bridging the gap between abstract theories and real-world applications. Through various lessons, it underscores the value of a questioning mindset in both scientific exploration and personal growth.
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billtodd
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My question is about Eq. (3.8.12) on page 112 of this text:
https://arxiv.org/pdf/hep-th/0108200
I believe that ##f'(\Phi(z))=\frac{df(\Phi(z))}{dz}##, I get confused with the prime in ##z'## and is it really just this derivative?
I wonder how many people read this 1983 book.
 

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